KPV
Alpha-MSH Fragment / Anti-Inflammatory
A C-terminal fragment of alpha-MSH with potent anti-inflammatory and gut-healing properties through MC1R activation.
Learn More: KPVOral KPV for direct gut anti-inflammatory effects and systemic immune modulation.
Oral KPV capsules provide direct gut anti-inflammatory effects through intestinal MC1R activation. KPV (Lys-Pro-Val) is a tripeptide derived from the C-terminal sequence of alpha-melanocyte stimulating hormone (alpha-MSH), which is itself a potent endogenous anti-inflammatory neuropeptide. What makes KPV particularly unique among oral peptides is its ability to directly penetrate intestinal epithelial cells — most peptides cannot cross this barrier, but KPV’s small size and specific sequence allow it to enter cells directly and inhibit NF-kB signaling from within. This intracellular mechanism of action makes oral KPV exceptionally effective for gut inflammation, as it can act on both the luminal surface and within the epithelial cells themselves. Research in animal models of colitis has demonstrated significant reductions in intestinal inflammation, mucosal damage scores, and pro-inflammatory cytokine levels with oral KPV administration. It is particularly relevant for conditions including ulcerative colitis, Crohn’s disease, and general intestinal hyperpermeability.
* Benefits based on preclinical/animal research unless otherwise noted.
“Oral KPV for direct gut anti-inflammatory effects and systemic immune modulation.”
KPV activates melanocortin receptor 1 (MC1R) on intestinal epithelial cells and macrophages, triggering a signaling cascade that prevents NF-kB (nuclear factor kappa B) from translocating to the nucleus. NF-kB is the master regulator of inflammatory gene expression, and its inhibition reduces transcription of pro-inflammatory cytokines including IL-1beta, IL-6, TNF-alpha, and IL-8. Uniquely, KPV can also directly penetrate intestinal epithelial cells through a receptor-independent mechanism, allowing it to inhibit NF-kB signaling intracellularly. This dual mechanism — surface receptor activation and intracellular penetration — makes KPV more effective than compounds that can only act from the luminal surface. KPV also modulates macrophage polarization, shifting intestinal macrophages from a pro-inflammatory M1 phenotype toward an anti-inflammatory M2 phenotype, which promotes mucosal healing and reduces chronic inflammation.
Protocol Notes: Take on empty stomach for best GI absorption. Particularly effective for IBD, colitis, and leaky gut.
Store at room temperature, away from light and moisture.
When sourcing KPV (Capsule) for research purposes, the following quality benchmarks should be verified before use.
Store at room temperature, away from light and moisture.
The statements made within this website have not been evaluated by the US Food and Drug Administration. The products and information provided are not intended to diagnose, treat, cure, or prevent any disease. This website is intended for educational and research purposes only. Many peptides described on this site are not approved by the FDA for human therapeutic use and are classified as research chemicals. Nothing on this site constitutes medical advice.
Limited Evidence
Primarily animal studies with limited human data. Mechanism is plausible but clinical efficacy is unconfirmed.
Peptides commonly used alongside KPV (Capsule) for synergistic effects.
Alpha-MSH Fragment / Anti-Inflammatory
A C-terminal fragment of alpha-MSH with potent anti-inflammatory and gut-healing properties through MC1R activation.
Learn More: KPVThymic Peptide / Immunomodulator
The most clinically validated immunomodulatory peptide, approved in 35+ countries for hepatitis B, hepatitis C, and immune deficiency
Learn More: Thymosin α1